## Copyright 2015-2019 Ilgar Lunin, Pedro Cabrera

## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
## You may obtain a copy of the License at

##     http://www.apache.org/licenses/LICENSE-2.0

## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.


import sys
from PyFlow.App import PyFlow
from qtpy.QtWidgets import QApplication
import argparse
import os
import json


def main():    
    app = QApplication(sys.argv)

    instance = PyFlow.instance(software="standalone")
    if instance is not None:
        instance.activateWindow()
        instance.show()
        
        parser = argparse.ArgumentParser(description="PyFlow CLI")
        parser.add_argument("-f", "--filePath", type=str, default="Untitled.pygraph")
        parsedArguments, unknown = parser.parse_known_args(sys.argv[1:])
        filePath = parsedArguments.filePath
        if not filePath.endswith(".pygraph"):
            filePath += ".pygraph"
        if os.path.exists(filePath):
                with open(filePath, 'r') as f:
                    data = json.load(f)
                    instance.loadFromData(data)
                    instance.currentFileName = filePath
                    
        try:
            sys.exit(app.exec_())
        except Exception as e:
            print(e)


        try:
            sys.exit(app.exec_())
        except Exception as e:
            print(e)


if __name__ == "__main__":
    main()
